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<title>Building Web Services with JAX-WS - The Java EE 6 Tutorial</title>
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      <td width="400px"><p class="toc level1"><a href="docinfo.html">Document Information</a></p>
<p class="toc level1 tocsp"><a href="gexaf.html">Preface</a></p>
<p class="toc level1 tocsp"><a href="gfirp.html">Part&nbsp;I&nbsp;Introduction</a></p>
<p class="toc level2"><a href="bnaaw.html">1.&nbsp;&nbsp;Overview</a></p>
<p class="toc level2"><a href="gfiud.html">2.&nbsp;&nbsp;Using the Tutorial Examples</a></p>
<p class="toc level1 tocsp"><a href="bnadp.html">Part&nbsp;II&nbsp;The Web Tier</a></p>
<p class="toc level2"><a href="bnadr.html">3.&nbsp;&nbsp;Getting Started with Web Applications</a></p>
<p class="toc level2"><a href="bnaph.html">4.&nbsp;&nbsp;JavaServer Faces Technology</a></p>
<p class="toc level2"><a href="giepx.html">5.&nbsp;&nbsp;Introduction to Facelets</a></p>
<p class="toc level2"><a href="gjddd.html">6.&nbsp;&nbsp;Expression Language</a></p>
<p class="toc level2"><a href="bnaqz.html">7.&nbsp;&nbsp;Using JavaServer Faces Technology in Web Pages</a></p>
<p class="toc level2"><a href="gjcut.html">8.&nbsp;&nbsp;Using Converters, Listeners, and Validators</a></p>
<p class="toc level2"><a href="bnatx.html">9.&nbsp;&nbsp;Developing with JavaServer Faces Technology</a></p>
<p class="toc level2"><a href="gkmaa.html">10.&nbsp;&nbsp;JavaServer Faces Technology Advanced Concepts</a></p>
<p class="toc level2"><a href="bnawo.html">11.&nbsp;&nbsp;Configuring JavaServer Faces Applications</a></p>
<p class="toc level2"><a href="gkiow.html">12.&nbsp;&nbsp;Using Ajax with JavaServer Faces Technology</a></p>
<p class="toc level2"><a href="gkhxa.html">13.&nbsp;&nbsp;Advanced Composite Components</a></p>
<p class="toc level2"><a href="bnavg.html">14.&nbsp;&nbsp;Creating Custom UI Components</a></p>
<p class="toc level2"><a href="bnafd.html">15.&nbsp;&nbsp;Java Servlet Technology</a></p>
<p class="toc level2"><a href="bnaxu.html">16.&nbsp;&nbsp;Internationalizing and Localizing Web Applications</a></p>
<p class="toc level1 tocsp"><a href="bnayk.html">Part&nbsp;III&nbsp;Web Services</a></p>
<p class="toc level2"><a href="gijti.html">17.&nbsp;&nbsp;Introduction to Web Services</a></p>
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<p class="toc level2"><a href="">18.&nbsp;&nbsp;Building Web Services with JAX-WS</a></p>
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<p class="toc level3"><a href="bnayn.html">Creating a Simple Web Service and Clients with JAX-WS</a></p>
<p class="toc level4"><a href="bnayn.html#bnayp">Requirements of a JAX-WS Endpoint</a></p>
<p class="toc level4"><a href="bnayn.html#bnayq">Coding the Service Endpoint Implementation Class</a></p>
<p class="toc level4"><a href="bnayn.html#bnayr">Building, Packaging, and Deploying the Service</a></p>
<p class="toc level5"><a href="bnayn.html#bnays">To Build, Package, and Deploy the Service Using NetBeans IDE</a></p>
<p class="toc level5"><a href="bnayn.html#bnayt">To Build, Package, and Deploy the Service Using Ant</a></p>
<p class="toc level4 tocsp"><a href="bnayn.html#gkajl">Testing the Methods of a Web Service Endpoint</a></p>
<p class="toc level5"><a href="bnayn.html#bnayw">To Test the Service without a Client</a></p>
<p class="toc level4 tocsp"><a href="bnayn.html#bnayx">A Simple JAX-WS Application Client</a></p>
<p class="toc level5"><a href="bnayn.html#bnayy">Coding the Application Client</a></p>
<p class="toc level5"><a href="bnayn.html#bnayz">Building, Packaging, Deploying, and Running the Application Client</a></p>
<p class="toc level4 tocsp"><a href="bnayn.html#gjygb">A Simple JAX-WS Web Client</a></p>
<p class="toc level5"><a href="bnayn.html#gjyfl">Coding the Servlet</a></p>
<p class="toc level5"><a href="bnayn.html#gjyge">Building, Packaging, Deploying, and Running the Web Client</a></p>
<p class="toc level3 tocsp"><a href="bnazc.html">Types Supported by JAX-WS</a></p>
<p class="toc level4"><a href="bnazc.html#bnazt">Schema-to-Java Mapping</a></p>
<p class="toc level4"><a href="bnazc.html#bnazw">Java-to-Schema Mapping</a></p>
<p class="toc level3 tocsp"><a href="bnazd.html">Web Services Interoperability and JAX-WS</a></p>
<p class="toc level3"><a href="bnaze.html">Further Information about JAX-WS</a></p>
<p class="toc level2 tocsp"><a href="giepu.html">19.&nbsp;&nbsp;Building RESTful Web Services with JAX-RS</a></p>
<p class="toc level2"><a href="gjjxe.html">20.&nbsp;&nbsp;Advanced JAX-RS Features</a></p>
<p class="toc level2"><a href="gkojl.html">21.&nbsp;&nbsp;Running the Advanced JAX-RS Example Application</a></p>
<p class="toc level1 tocsp"><a href="bnblr.html">Part&nbsp;IV&nbsp;Enterprise Beans</a></p>
<p class="toc level2"><a href="gijsz.html">22.&nbsp;&nbsp;Enterprise Beans</a></p>
<p class="toc level2"><a href="gijre.html">23.&nbsp;&nbsp;Getting Started with Enterprise Beans</a></p>
<p class="toc level2"><a href="gijrb.html">24.&nbsp;&nbsp;Running the Enterprise Bean Examples</a></p>
<p class="toc level2"><a href="bnbpk.html">25.&nbsp;&nbsp;A Message-Driven Bean Example</a></p>
<p class="toc level2"><a href="gkcqz.html">26.&nbsp;&nbsp;Using the Embedded Enterprise Bean Container</a></p>
<p class="toc level2"><a href="gkidz.html">27.&nbsp;&nbsp;Using Asynchronous Method Invocation in Session Beans</a></p>
<p class="toc level1 tocsp"><a href="gjbnr.html">Part&nbsp;V&nbsp;Contexts and Dependency Injection for the Java EE Platform</a></p>
<p class="toc level2"><a href="giwhb.html">28.&nbsp;&nbsp;Introduction to Contexts and Dependency Injection for the Java EE Platform</a></p>
<p class="toc level2"><a href="gjbls.html">29.&nbsp;&nbsp;Running the Basic Contexts and Dependency Injection Examples</a></p>
<p class="toc level2"><a href="gjehi.html">30.&nbsp;&nbsp;Contexts and Dependency Injection for the Java EE Platform: Advanced Topics</a></p>
<p class="toc level2"><a href="gkhre.html">31.&nbsp;&nbsp;Running the Advanced Contexts and Dependency Injection Examples</a></p>
<p class="toc level1 tocsp"><a href="bnbpy.html">Part&nbsp;VI&nbsp;Persistence</a></p>
<p class="toc level2"><a href="bnbpz.html">32.&nbsp;&nbsp;Introduction to the Java Persistence API</a></p>
<p class="toc level2"><a href="gijst.html">33.&nbsp;&nbsp;Running the Persistence Examples</a></p>
<p class="toc level2"><a href="bnbtg.html">34.&nbsp;&nbsp;The Java Persistence Query Language</a></p>
<p class="toc level2"><a href="gjitv.html">35.&nbsp;&nbsp;Using the Criteria API to Create Queries</a></p>
<p class="toc level2"><a href="gkjiq.html">36.&nbsp;&nbsp;Creating and Using String-Based Criteria Queries</a></p>
<p class="toc level2"><a href="gkjjf.html">37.&nbsp;&nbsp;Controlling Concurrent Access to Entity Data with Locking</a></p>
<p class="toc level2"><a href="gkjia.html">38.&nbsp;&nbsp;Improving the Performance of Java Persistence API Applications By Setting a Second-Level Cache</a></p>
<p class="toc level1 tocsp"><a href="gijrp.html">Part&nbsp;VII&nbsp;Security</a></p>
<p class="toc level2"><a href="bnbwj.html">39.&nbsp;&nbsp;Introduction to Security in the Java EE Platform</a></p>
<p class="toc level2"><a href="bncas.html">40.&nbsp;&nbsp;Getting Started Securing Web Applications</a></p>
<p class="toc level2"><a href="bnbyk.html">41.&nbsp;&nbsp;Getting Started Securing Enterprise Applications</a></p>
<p class="toc level1 tocsp"><a href="gijue.html">Part&nbsp;VIII&nbsp;Java EE Supporting Technologies</a></p>
<p class="toc level2"><a href="gijto.html">42.&nbsp;&nbsp;Introduction to Java EE Supporting Technologies</a></p>
<p class="toc level2"><a href="bncih.html">43.&nbsp;&nbsp;Transactions</a></p>
<p class="toc level2"><a href="bncjh.html">44.&nbsp;&nbsp;Resource Connections</a></p>
<p class="toc level2"><a href="bncdq.html">45.&nbsp;&nbsp;Java Message Service Concepts</a></p>
<p class="toc level2"><a href="bncgv.html">46.&nbsp;&nbsp;Java Message Service Examples</a></p>
<p class="toc level2"><a href="gkahp.html">47.&nbsp;&nbsp;Advanced Bean Validation Concepts and Examples</a></p>
<p class="toc level2"><a href="gkeed.html">48.&nbsp;&nbsp;Using Java EE Interceptors</a></p>
<p class="toc level1 tocsp"><a href="gkgjw.html">Part&nbsp;IX&nbsp;Case Studies</a></p>
<p class="toc level2"><a href="gkaee.html">49.&nbsp;&nbsp;Duke's Tutoring Case Study Example</a></p>
<p class="toc level1 tocsp"><a href="idx-1.html">Index</a></p>
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	 <div class="maincontent">      	 
             <a name="bnayl"></a><h3>Chapter&nbsp;18<br>Building Web Services with JAX-WS</h3><p><a name="indexterm-1185"></a><a name="indexterm-1186"></a>Java API for XML Web Services (JAX-WS) is a technology for building web
services and clients that communicate using XML. JAX-WS allows developers to write message-oriented as
well as Remote Procedure Call-oriented (RPC-oriented) web services.</p>

<p><a name="indexterm-1187"></a><a name="indexterm-1188"></a>In JAX-WS, a web service operation invocation is represented by an XML-based protocol,
such as SOAP. The SOAP specification defines the envelope structure, encoding rules, and
conventions for representing web service invocations and responses. These calls and responses are
transmitted as SOAP messages (XML files) over HTTP.</p>

<p><a name="indexterm-1189"></a>Although SOAP messages are complex, the JAX-WS API hides this complexity from the
application developer. On the server side, the developer specifies the web service operations
by defining methods in an interface written in the Java programming language. The developer
also codes one or more classes that implement those methods. Client programs are
also easy to code. A client creates a proxy (a local object representing
the service) and then simply invokes methods on the proxy. With JAX-WS, the
developer does not generate or parse SOAP messages. It is the JAX-WS runtime
system that converts the API calls and responses to and from SOAP messages.</p>

<p><a name="indexterm-1190"></a><a name="indexterm-1191"></a><a name="indexterm-1192"></a><a name="indexterm-1193"></a>With JAX-WS, clients and web services have a big advantage: the platform independence
of the Java programming language. In addition, JAX-WS is not restrictive: A JAX-WS
client can access a web service that is not running on the Java
platform, and vice versa. This flexibility is possible because JAX-WS uses technologies defined
by the W3C: HTTP, SOAP, and WSDL. WSDL specifies an XML format for
describing a service as a set of endpoints operating on messages.</p>


<hr><p><b>Note - </b>Several files in the JAX-WS examples depend on the port that you specified
when you installed the GlassFish Server. These tutorial examples assume that the server
runs on the default port, 8080. They do not run with a
nondefault port setting.</p>


<hr>
<p>The following topics are addressed here:</p>


<ul><li><p><a href="bnayn.html">Creating a Simple Web Service and Clients with JAX-WS</a></p>

</li>
<li><p><a href="bnazc.html">Types Supported by JAX-WS</a></p>

</li>
<li><p><a href="bnazd.html">Web Services Interoperability and JAX-WS</a></p>

</li>
<li><p><a href="bnaze.html">Further Information about JAX-WS</a></p>

</li></ul>

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